Question

Multiplicative inverse of a negative rational number is _______.

• A. 1
• B. a negative rational number
• C. 0
• D. a positive rational number

Answer 1

The correct option is B

a negative rational number

The multiplicative inverse of a negative rational number is a negative rational number. If $-a$ is a negative rational number, $\frac{-1}{a}$ is its multiplicative inverse.

$\text{For example},-5\times \frac{1}{-5}=1$